User manual

PCL-818 Series User Manual 58
DMAE Disable/enable DMA transfers
0 Disables DMA transfers
1 Enables DMA transfer. Each A/D conversion initiates two
successive DMA request signals. These signals cause the
8237 DMA controller to transfer two bytes of conversion
data from the PCL-818HD/HG/L to memory.
ST1 to ST0 Trigger source
Note: Make sure that the IRQ level you choose is not
being used by another I/O device.
Note: You must program the PC's 8237 DMA controller
the DMA page register before you set DMAE to 1.
Trigger Source ST1 ST0
Software trigger 0 X
External trigger 1 0
Pacer trigger 1 1